def test_javascript_heavy_inline_monstrosity(self):
scraper = JavaScriptScraper()
request = Request('http://example.com/test.js')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples',
'twitchplayspokemonfirered.html')
with open(html_file_path, 'rb') as in_file:
in_file.seek(0x147)
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertIn(
'http://cdn.bulbagarden.net/upload/archive/a/a4/'
'20090718115357%21195Quagsire.png',
inline_urls
)
self.assertIn(
'http://www.google.com/url?q=http%3A%2F%2Fwww.reddit.com%2F'
'user%2FGoldenSandslash15&sa=D&sntz=1&'
'usg=AFQjCNElFBxZYdNm5mWoRSncf5tbdIJQ-A',
linked_urls
)
print('\n'.join(inline_urls))
print('\n'.join(linked_urls))
def test_xhtml_invalid(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples',
'xhtml_invalid.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual(
{
'http://example.com/image.png',
'http://example.com/script.js',
},
inline_urls
)
self.assertEqual(
{
'http://example.com/link'
},
linked_urls
)
def test_rss_as_html(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
response.fields['content-type'] = 'application/rss+xml'
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples', 'rss.xml')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
self.assertTrue(scrape_result)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertFalse(
inline_urls
)
self.assertEqual(
{
'http://www.someexamplerssdomain.com/main.html',
'http://www.wikipedia.org/'
},
linked_urls
)
def test_html_not_quite_charset(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples',
'videogame_top.htm')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertIn(
'http://example.com/copyright_2001_2006_rtype.gif',
inline_urls
)
self.assertIn(
'http://www.geocities.jp/gamehouse_grindcrusher/',
linked_urls
)
def test_redirect_loop(self):
http_client = MockHTTPClient()
pool = RobotsTxtPool()
client = RichClient(http_client, pool)
session = MockRobotsTxtRichClientSession(
client, Request.new('http://example.com')
)
self.assertEqual(RobotsState.unknown, session._robots_state)
for dummy in range(21):
request = session.next_request
self.assertTrue(request.url_info.url.endswith('robots.txt'))
response = Response('HTTP/1.0', 302, 'See else')
response.url_info = request.url_info
response.fields['location'] = '/robots.txt'
http_client.response = response
yield session.fetch()
request = session.next_request
self.assertTrue(request)
response = Response('HTTP/1.0', 200, 'OK')
http_client.response = response
yield session.fetch()
self.assertEqual(RobotsState.ok, session._robots_state)
print(session.next_request)
self.assertTrue(session.done)
def test_html_krokozyabry(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html; charset=KOI8-R'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'krokozyabry.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual('koi8-r', scrape_info['encoding'])
self.assertEqual(
set(),
inline_urls
)
self.assertEqual(
{'http://example.com/Кракозябры'},
linked_urls
)
def test_javascript_heavy_inline_monstrosity(self):
scraper = JavaScriptScraper()
request = Request('http://example.com/test.js')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH, 'testing', 'samples',
'twitchplayspokemonfirered.html')
with open(html_file_path, 'rb') as in_file:
in_file.seek(0x147)
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertIn(
'http://cdn.bulbagarden.net/upload/archive/a/a4/'
'20090718115357%21195Quagsire.png', inline_urls)
self.assertIn(
'http://www.google.com/url?q=http%3A%2F%2Fwww.reddit.com%2F'
'user%2FGoldenSandslash15&sa=D&sntz=1&'
'usg=AFQjCNElFBxZYdNm5mWoRSncf5tbdIJQ-A', linked_urls)
print('\n'.join(inline_urls))
print('\n'.join(linked_urls))
def test_sitemap_scraper_xml_index(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/sitemap.xml')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(b'''<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap>
<loc>http://www.example.com/sitemap1.xml.gz</loc>
<lastmod>2004-10-01T18:23:17+00:00</lastmod>
</sitemap>
</sitemapindex>
''')
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual({
'http://www.example.com/sitemap1.xml.gz',
}, linked_urls)
self.assertFalse(inline_urls)
def test_rss_as_html(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'application/rss+xml'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'rss.xml')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertFalse(
inline_urls
)
self.assertEqual(
{
'http://www.someexamplerssdomain.com/main.html',
'http://www.wikipedia.org/'
},
linked_urls
)
def test_html_krokozyabry(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html; charset=KOI8-R'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples',
'krokozyabry.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual('koi8-r', scrape_info['encoding'])
self.assertEqual(
set(),
inline_urls
)
self.assertEqual(
{'http://example.com/Кракозябры'},
linked_urls
)
def test_sitemap_scraper_xml_index(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/sitemap.xml')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(
b'''<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap>
<loc>http://www.example.com/sitemap1.xml.gz</loc>
<lastmod>2004-10-01T18:23:17+00:00</lastmod>
</sitemap>
</sitemapindex>
'''
)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual({
'http://www.example.com/sitemap1.xml.gz',
},
linked_urls
)
self.assertFalse(inline_urls)
def test_response(self):
response = Response(200, 'OK')
response.fields['Cake'] = 'dolphin'
self.assertEqual((b'HTTP/1.1 200 OK\r\n'
b'Cake: dolphin\r\n'
b'\r\n'), response.to_bytes())
def test_sitemap_scraper_xml(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/sitemap.xml')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(
b'''<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://www.example.com/</loc>
<lastmod>2005-01-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
</urlset>
'''
)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual({
'http://www.example.com/',
},
linked_urls
)
self.assertFalse(inline_urls)
def test_html_krokozyabry(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
response.fields['content-type'] = 'text/html; charset=KOI8-R'
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples',
'krokozyabry.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual('koi8-r', scrape_result.encoding)
self.assertEqual(
set(),
inline_urls
)
self.assertEqual(
{'http://example.com/Кракозябры'},
linked_urls
)
def test_html_soup(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['Refresh'] = 'yes'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'soup.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual(
{'http://example.com/ABOUTM~1.JPG'},
inline_urls
)
self.assertEqual(
{
'http://example.com/BLOG',
'http://example.com/web ring/Join.htm',
},
linked_urls
)
def test_html_soup(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
response.fields['Refresh'] = 'yes'
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples', 'soup.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual(
{'http://example.com/ABOUTM~1.JPG'},
inline_urls
)
self.assertEqual(
{
'http://example.com/BLOG',
'http://example.com/web ring/Join.htm',
},
linked_urls
)
def test_fetch_allow(self):
http_client = MockHTTPClient()
pool = RobotsTxtPool()
client = RichClient(http_client, pool)
session = MockRobotsTxtRichClientSession(
client, Request.new('http://example.com'))
self.assertEqual(RobotsState.unknown, session._robots_state)
request = session.next_request
self.assertTrue(request.url_info.url.endswith('robots.txt'))
response = Response('HTTP/1.0', 200, 'OK')
response.body.content_file = io.StringIO('User-agent:*\nAllow: /\n')
http_client.response = response
yield session.fetch()
self.assertEqual(RobotsState.ok, session._robots_state)
request = session.next_request
self.assertTrue(request.url_info.url.endswith('/'))
response = Response('HTTP/1.0', 200, 'OK')
http_client.response = response
yield session.fetch()
self.assertTrue(session.done)
def test_sitemap_scraper_xml(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/sitemap.xml')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(b'''<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://www.example.com/</loc>
<lastmod>2005-01-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
</urlset>
''')
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual({
'http://www.example.com/',
}, linked_urls)
self.assertFalse(inline_urls)
def get_http_header(self):
'''Return the HTTP header.
It only attempts to read the first 4 KiB of the payload.
Returns:
Response, None: Returns an instance of
:class:`.http.request.Response` or None.
'''
with wpull.util.reset_file_offset(self.block_file):
data = self.block_file.read(4096)
match = re.match(br'(.*?\r?\n\r?\n)', data)
if not match:
return
status_line, dummy, field_str = match.group(1).partition(b'\n')
try:
version, code, reason = Response.parse_status_line(status_line)
except ValueError:
return
response = Response(version, code, reason)
try:
response.fields.parse(field_str, strict=False)
except ValueError:
return
return response
def test_html_soup(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['Refresh'] = 'yes'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'soup.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual(
{'http://example.com/ABOUTM~1.JPG'},
inline_urls
)
self.assertEqual(
{
'http://example.com/BLOG',
'http://example.com/web ring/Join.htm',
},
linked_urls
)
def test_rss_as_html(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'application/rss+xml'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'rss.xml')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertFalse(
inline_urls
)
self.assertEqual(
{
'http://www.someexamplerssdomain.com/main.html',
'http://www.wikipedia.org/'
},
linked_urls
)
def test_http_response(self):
response = Response(200, 'OK', version='HTTP/1.0')
response.fields['hello'] = 'world'
new_response = HTTPResponseInfoWrapper(response)
info = new_response.info()
self.assertEqual('world', info.get('hello'))
def test_response(self):
response = Response(200, 'OK')
response.fields['Cake'] = 'dolphin'
self.assertEqual(
(b'HTTP/1.1 200 OK\r\n'
b'Cake: dolphin\r\n'
b'\r\n'),
response.to_bytes()
)
def test_xml_detect(self):
self.assertTrue(
XMLDetector.is_file(io.BytesIO(
'<?xml version='.encode('utf-16le'))))
self.assertFalse(
XMLDetector.is_file(
io.BytesIO('<!DOCTYPE html><html><body>'.encode('utf-16le'))))
self.assertFalse(XMLDetector.is_file(io.BytesIO(b'<html><body>hello')))
self.assertTrue(XMLDetector.is_file(io.BytesIO(b'<?xml version')))
self.assertTrue(
XMLDetector.is_url(URLInfo.parse('example.com/index.xml')))
self.assertFalse(
XMLDetector.is_url(URLInfo.parse('example.com/image.jpg')))
self.assertTrue(
XMLDetector.is_request(Request('example.com/index.xml')))
self.assertFalse(
XMLDetector.is_request(Request('example.com/image.jpg')))
response = Response(200, 'OK')
response.fields['Content-Type'] = 'text/xml'
self.assertTrue(XMLDetector.is_response(response))
response = Response(200, 'OK')
response.fields['Content-Type'] = 'application/xml'
self.assertTrue(XMLDetector.is_response(response))
response = Response(200, 'OK')
response.fields['Content-Type'] = 'image/png'
self.assertFalse(XMLDetector.is_response(response))
def test_to_dict_body(self):
request = Request()
request.body = Body()
request_dict = request.to_dict()
self.assertTrue(request_dict['body'])
request.body.close()
request = Request()
request.body = NotImplemented
request_dict = request.to_dict()
self.assertFalse(request_dict['body'])
response = Response()
response.body = Body()
response_dict = response.to_dict()
self.assertTrue(response_dict['body'])
response.body.close()
response = Response()
response.body = NotImplemented
response_dict = response.to_dict()
self.assertFalse(response_dict['body'])
def test_html_detect(self):
self.assertTrue(HTMLReader.is_file(
io.BytesIO('<html><body>hi</body></html>'.encode('utf-16le'))
))
self.assertFalse(HTMLReader.is_file(
io.BytesIO('hello world!'.encode('utf-16le'))
))
self.assertTrue(HTMLReader.is_file(
io.BytesIO(b'<title>hello</title>hi')
))
self.assertTrue(HTMLReader.is_file(
io.BytesIO(b'<html><body>hello')
))
self.assertTrue(HTMLReader.is_file(
io.BytesIO(
b'The document has moved <a href="somewhere.html">here</a>'
)
))
self.assertTrue(
HTMLReader.is_url(URLInfo.parse('example.com/index.htm'))
)
self.assertTrue(
HTMLReader.is_url(URLInfo.parse('example.com/index.html'))
)
self.assertTrue(
HTMLReader.is_url(URLInfo.parse('example.com/index.dhtm'))
)
self.assertTrue(
HTMLReader.is_url(URLInfo.parse('example.com/index.xhtml'))
)
self.assertTrue(
HTMLReader.is_url(URLInfo.parse('example.com/index.xht'))
)
self.assertFalse(
HTMLReader.is_url(URLInfo.parse('example.com/image.jpg'))
)
self.assertTrue(
HTMLReader.is_request(Request.new('example.com/index.html'))
)
self.assertFalse(
HTMLReader.is_request(Request.new('example.com/image.jpg'))
)
response = Response('HTTP/1.0', '200', 'OK')
response.fields['Content-Type'] = 'text/html'
self.assertTrue(HTMLReader.is_response(response))
response = Response('HTTP/1.0', '200', 'OK')
response.fields['Content-Type'] = 'image/png'
self.assertFalse(HTMLReader.is_response(response))
def test_warc_recorder_rollback(self):
warc_filename = 'asdf.warc'
warc_prefix = 'asdf'
with open(warc_filename, 'wb') as warc_file:
warc_file.write(b'a' * 10)
warc_recorder = WARCRecorder(
warc_prefix,
params=WARCRecorderParams(
compress=False,
)
)
request = HTTPRequest('http://example.com/')
request.address = ('0.0.0.0', 80)
response = HTTPResponse(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(b'KITTEH DOGE')
with warc_recorder.session() as session:
session.pre_request(request)
session.request_data(request.to_bytes())
class BadRecord(WARCRecord):
def __init__(self, original_record):
super().__init__()
self.block_file = original_record.block_file
self.fields = original_record.fields
def __iter__(self):
for dummy in range(1000):
yield b"where's my elephant?"
raise OSError('Oops')
session._child_session._request_record = \
BadRecord(session._child_session._request_record)
original_offset = os.path.getsize(warc_filename)
with self.assertRaises((OSError, IOError)):
session.request(request)
new_offset = os.path.getsize(warc_filename)
self.assertEqual(new_offset, original_offset)
self.assertFalse(os.path.exists(warc_filename + '-wpullinc'))
_logger.debug('original offset {0}'.format(original_offset))
def test_html_serious_bad_encoding(self):
scraper = HTMLScraper(encoding_override='utf8')
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html; charset=utf8'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'xkcd_1_evil.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
def test_css_scraper_reject_type(self):
scraper = CSSScraper()
request = Request('http://example.com/styles.css')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples', 'styles.css')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response,
link_type=LinkType.html)
self.assertFalse(scrape_result)
def test_html_serious_bad_encoding(self):
scraper = HTMLScraper(encoding_override='utf8')
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html; charset=utf8'
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'xkcd_1_evil.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
def test_warc_max_size_and_append(self):
file_prefix = 'asdf'
with open('asdf-00000.warc', 'w'):
pass
with open('asdf-00001.warc', 'w'):
pass
warc_recorder = WARCRecorder(
file_prefix,
params=WARCRecorderParams(
compress=False,
max_size=1,
appending=True
),
)
request = HTTPRequest('http://example.com/1')
request.address = ('0.0.0.0', 80)
response = HTTPResponse(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(b'BLAH')
with warc_recorder.session() as session:
session.pre_request(request)
session.request_data(request.to_bytes())
session.request(request)
session.pre_response(response)
session.response_data(response.to_bytes())
session.response_data(response.body.content())
session.response(response)
warc_recorder.close()
self.assertTrue(os.path.exists('asdf-00000.warc'))
self.assertTrue(os.path.exists('asdf-00001.warc'))
self.assertTrue(os.path.exists('asdf-00002.warc'))
self.assertTrue(os.path.exists('asdf-00003.warc'))
self.assertTrue(os.path.exists('asdf-meta.warc'))
self.assertEqual(0, os.path.getsize('asdf-00000.warc'))
self.assertEqual(0, os.path.getsize('asdf-00001.warc'))
self.assertNotEqual(0, os.path.getsize('asdf-00002.warc'))
self.assertNotEqual(0, os.path.getsize('asdf-00003.warc'))
self.assertNotEqual(0, os.path.getsize('asdf-meta.warc'))
def test_sitemap_scraper_invalid_robots(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/robots.txt')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(
b'dsfju3wrji kjasSItemapsdmjfkl wekie;er :Ads fkj3m /Dk')
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertFalse(linked_urls)
self.assertFalse(inline_urls)
def test_javascript_heavy_inline_monstrosity(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, 'OK')
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'twitchplayspokemonfirered.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertIn(
'http://cdn.bulbagarden.net/upload/archive/a/a4/'
'20090718115357%21195Quagsire.png',
inline_urls
)
self.assertIn(
'http://www.google.com/url?q=http%3A%2F%2Fwww.reddit.com%2F'
'user%2FGoldenSandslash15&sa=D&sntz=1&'
'usg=AFQjCNElFBxZYdNm5mWoRSncf5tbdIJQ-A',
linked_urls
)
def test_sitemap_scraper_xml(self):
scraper = SitemapScraper()
request = Request.new('http://example.com/sitemap.xml')
response = Response('HTTP/1.0', 200, 'OK')
with wpull.util.reset_file_offset(response.body.content_file):
response.body.content_file.write(
b'''<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://www.example.com/</loc>
<lastmod>2005-01-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
</urlset>
'''
)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual({
'http://www.example.com/',
},
linked_urls
)
self.assertFalse(inline_urls)
def test_sitemap_scraper_xml_index(self):
scraper = SitemapScraper()
request = Request.new('http://example.com/sitemap.xml')
response = Response('HTTP/1.0', 200, 'OK')
with wpull.util.reset_file_offset(response.body.content_file):
response.body.content_file.write(
b'''<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap>
<loc>http://www.example.com/sitemap1.xml.gz</loc>
<lastmod>2004-10-01T18:23:17+00:00</lastmod>
</sitemap>
</sitemapindex>
'''
)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual({
'http://www.example.com/sitemap1.xml.gz',
},
linked_urls
)
self.assertFalse(inline_urls)
def test_html_encoding_lxml_name_mismatch(self):
'''It should accept encoding names with underscore.'''
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html; charset=EUC_KR'
with wpull.util.reset_file_offset(response.body.content_file):
response.body.content_file.write(
'힖'.encode('euc_kr')
)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
self.assertEqual('euc_kr', scrape_info['encoding'])
def test_html_garbage(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html'
with wpull.util.reset_file_offset(response.body.content_file):
response.body.content_file.write(
b'\x01\x00\x01\x00l~Z\xff\x0f`y\x80\x00p<\x7f'
b'\xffndo\xff\xff-\x83{d\xec</\xfe\x80\x00\xb4Bo'
b'\x7f\xff\xff\xffV\xc1\xff\x7f\xff7'
)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
def test_xhtml_invalid(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'xhtml_invalid.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual(
{
'http://example.com/image.png',
'http://example.com/script.js',
},
inline_urls
)
self.assertEqual(
{
'http://example.com/link'
},
linked_urls
)
def test_server_error(self):
http_client = MockHTTPClient()
pool = RobotsTxtPool()
client = RichClient(http_client, pool)
session = MockRobotsTxtRichClientSession(
client, Request.new('http://example.com')
)
self.assertEqual(RobotsState.unknown, session._robots_state)
for dummy in range(21):
request = session.next_request
self.assertTrue(request.url_info.url.endswith('robots.txt'))
response = Response('HTTP/1.0', 500, 'Opps')
http_client.response = response
yield session.fetch()
request = session.next_request
self.assertIsNone(request)
try:
yield session.fetch()
except RobotsDenied:
pass
else:
self.fail()
self.assertTrue(session.done)
def test_html_encoding_lxml_name_mismatch(self):
'''It should accept encoding names with underscore.'''
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html; charset=EUC_KR'
with wpull.util.reset_file_offset(response.body.content_file):
response.body.content_file.write(
'힖'.encode('euc_kr')
)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
self.assertEqual('euc_kr', scrape_info['encoding'])
def test_html_scraper_links_base_href(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, 'OK')
with wpull.util.reset_file_offset(response.body.content_file):
html_file_path = os.path.join(os.path.dirname(__file__),
'testing', 'samples', 'basehref.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body.content_file)
scrape_info = scraper.scrape(request, response)
inline_urls = scrape_info['inline_urls']
linked_urls = scrape_info['linked_urls']
self.assertEqual('utf-8', scrape_info['encoding'])
self.assertEqual({
'http://cdn.example.com/stylesheet1.css',
'http://www.example.com/stylesheet2.css',
'http://example.com/a/stylesheet3.css',
'http://example.com/a/dir/image1.png',
'http://example.com/dir/image2.png',
'http://example.net/image3.png',
'http://example.com/dir/image4.png',
},
inline_urls
)
self.assertEqual({
'http://example.com/a/'
},
linked_urls
)
def test_javascript_reject_type(self):
scraper = JavaScriptScraper()
request = Request('http://example.com/script.js')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH, 'testing', 'samples',
'script.js')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request,
response,
link_type=LinkType.css)
self.assertFalse(scrape_result)
def test_html_garbage(self):
scraper = HTMLScraper()
request = Request.new('http://example.com/')
response = Response('HTTP/1.0', 200, '')
response.fields['content-type'] = 'text/html'
with wpull.util.reset_file_offset(response.body.content_file):
response.body.content_file.write(
b'\x01\x00\x01\x00l~Z\xff\x0f`y\x80\x00p<\x7f'
b'\xffndo\xff\xff-\x83{d\xec</\xfe\x80\x00\xb4Bo'
b'\x7f\xff\xff\xffV\xc1\xff\x7f\xff7'
)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
def get_http_header(self):
'''Return the HTTP header.
It only attempts to read the first 4 KiB of the payload.
Returns:
Response, None: Returns an instance of
:class:`.http.request.Response` or None.
'''
with wpull.util.reset_file_offset(self.block_file):
data = self.block_file.read(4096)
match = re.match(br'(.*?\r?\n\r?\n)', data)
if not match:
return
status_line, dummy, field_str = match.group(1).partition(b'\n')
try:
version, code, reason = Response.parse_status_line(status_line)
except ValueError:
return
response = Response(version, code, reason)
try:
response.fields.parse(field_str, strict=False)
except ValueError:
return
return response
def test_response_empty_reason_line(self):
response = Response()
response.parse(b'HTTP/1.0 200\r\n')
response.parse(b'Cake: dolphin\r\n')
response.parse(b'\r\n')
self.assertEqual(200, response.status_code)
self.assertEqual('', response.reason)
self.assertEqual('dolphin', response.fields['Cake'])
def test_sitemap_scraper_invalid_robots(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/robots.txt')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(
b'dsfju3wrji kjasSItemapsdmjfkl wekie;er :Ads fkj3m /Dk'
)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertFalse(linked_urls)
self.assertFalse(inline_urls)
def test_sitemap_scraper_robots(self):
scraper = SitemapScraper(self.get_html_parser())
request = Request('http://example.com/robots.txt')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(b'Sitemap: http://example.com/sitemap00.xml')
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual({
'http://example.com/sitemap00.xml',
}, linked_urls)
self.assertFalse(inline_urls)
def test_warc_recorder_journal(self):
warc_filename = 'asdf.warc'
warc_prefix = 'asdf'
warc_recorder = WARCRecorder(
warc_prefix,
params=WARCRecorderParams(
compress=False,
)
)
request = HTTPRequest('http://example.com/')
request.address = ('0.0.0.0', 80)
response = HTTPResponse(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
response.body.write(b'KITTEH DOGE')
with warc_recorder.session() as session:
session.pre_request(request)
session.request_data(request.to_bytes())
test_instance = self
class MockRecord(WARCRecord):
def __init__(self, original_record):
super().__init__()
self.block_file = original_record.block_file
self.fields = original_record.fields
def __iter__(self):
print(list(os.walk('.')))
test_instance.assertTrue(
os.path.exists(warc_filename + '-wpullinc')
)
for dummy in range(1000):
yield b"where's my elephant?"
session._child_session._request_record = \
MockRecord(session._child_session._request_record)
session.request(request)
self.assertFalse(os.path.exists(warc_filename + '-wpullinc'))
def test_html_scraper_reject_type(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, 'OK')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples',
'many_urls.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response,
link_type=LinkType.css)
self.assertFalse(scrape_result)
def test_redirect_tracker(self):
tracker = RedirectTracker(5)
self.assertFalse(tracker.is_redirect())
self.assertFalse(tracker.is_repeat())
self.assertFalse(tracker.exceeded())
self.assertFalse(tracker.next_location(raw=True))
self.assertEqual(0, tracker.count())
response = Response(200, 'OK')
tracker.load(response)
self.assertFalse(tracker.is_redirect())
self.assertFalse(tracker.is_repeat())
self.assertFalse(tracker.exceeded())
self.assertFalse(tracker.next_location())
self.assertEqual(0, tracker.count())
response = Response(303, 'See other')
response.fields['location'] = '/test'
tracker.load(response)
self.assertTrue(tracker.is_redirect())
self.assertFalse(tracker.is_repeat())
self.assertFalse(tracker.exceeded())
self.assertEqual('/test', tracker.next_location(raw=True))
self.assertEqual(1, tracker.count())
response = Response(307, 'Temporary redirect')
response.fields['location'] = '/test'
tracker.load(response)
tracker.load(response)
tracker.load(response)
tracker.load(response)
tracker.load(response)
self.assertTrue(tracker.is_redirect())
self.assertTrue(tracker.is_repeat())
self.assertTrue(tracker.exceeded())
self.assertEqual('/test', tracker.next_location(raw=True))
self.assertEqual(6, tracker.count())
def test_redirect_tracker(self):
tracker = RedirectTracker(5)
self.assertFalse(tracker.is_redirect())
self.assertFalse(tracker.is_repeat())
self.assertFalse(tracker.exceeded())
self.assertFalse(tracker.next_location(raw=True))
self.assertEqual(0, tracker.count())
response = Response('HTTP/1.1', 200, '')
tracker.load(response)
self.assertFalse(tracker.is_redirect())
self.assertFalse(tracker.is_repeat())
self.assertFalse(tracker.exceeded())
self.assertFalse(tracker.next_location())
self.assertEqual(0, tracker.count())
response = Response('HTTP/1.1', 303, '')
response.fields['location'] = '/test'
tracker.load(response)
self.assertTrue(tracker.is_redirect())
self.assertFalse(tracker.is_repeat())
self.assertFalse(tracker.exceeded())
self.assertEqual('/test', tracker.next_location(raw=True))
self.assertEqual(1, tracker.count())
response = Response('HTTP/1.1', 307, '')
response.fields['location'] = '/test'
tracker.load(response)
tracker.load(response)
tracker.load(response)
tracker.load(response)
tracker.load(response)
self.assertTrue(tracker.is_redirect())
self.assertTrue(tracker.is_repeat())
self.assertTrue(tracker.exceeded())
self.assertEqual('/test', tracker.next_location(raw=True))
self.assertEqual(6, tracker.count())
def test_html_encoding_lxml_name_mismatch(self):
'''It should accept encoding names with underscore.'''
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
response.fields['content-type'] = 'text/html; charset=EUC_KR'
with wpull.util.reset_file_offset(response.body):
response.body.write(
'힖'.encode('euc_kr')
)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
self.assertEqual('euc_kr', scrape_info['encoding'])
def test_html_garbage(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
response.fields['content-type'] = 'text/html'
with wpull.util.reset_file_offset(response.body):
response.body.write(
b'\x01\x00\x01\x00l~Z\xff\x0f`y\x80\x00p<\x7f'
b'\xffndo\xff\xff-\x83{d\xec</\xfe\x80\x00\xb4Bo'
b'\x7f\xff\xff\xffV\xc1\xff\x7f\xff7'
)
scrape_info = scraper.scrape(request, response)
self.assertTrue(scrape_info)
def test_html_wrong_charset(self):
element_walker = ElementWalker(
css_scraper=CSSScraper(), javascript_scraper=JavaScriptScraper())
scraper = HTMLScraper(self.get_html_parser(), element_walker)
request = Request('http://example.com/')
response = Response(200, '')
response.body = Body()
with wpull.util.reset_file_offset(response.body):
html_file_path = os.path.join(ROOT_PATH,
'testing', 'samples', 'kcna.html')
with open(html_file_path, 'rb') as in_file:
shutil.copyfileobj(in_file, response.body)
scrape_result = scraper.scrape(request, response)
inline_urls = scrape_result.inline_links
linked_urls = scrape_result.linked_links
self.assertEqual('utf-16-le', scrape_result.encoding)
self.assertEqual(
{
'http://example.com/utm/__utm.js',
'http://example.com/Knewskage.gif',
'http://example.com/Lline.gif',
'http://example.com/Sline.gif',
'http://example.com/korean01.gif',
'http://example.com/korean02.gif',
'http://example.com/english01.gif',
'http://example.com/english02.gif',
'http://example.com/Tongsinkage.gif',
'http://example.com/Knewskage.gif',
},
inline_urls
)
self.assertEqual(
{
'http://example.com/index-k.htm',
'http://example.com/index-e.htm',
},
linked_urls
)
